Four major chains are shipping upgrades in the same half-year, and they are all optimising for the same thing — which is not throughput. Solana’s Alpenglow upgrade targets transaction finality of 100 to 150 milliseconds, against a current average near 12.8 seconds (CoinSpectator). Ethereum’s Glamsterdam is in testing on developer networks. Base has already shipped its Beryl hard fork. Avalanche has cut the cost of standing up a custom chain by more than 99%. Read the feature lists together and the pattern is unmistakable: this is not a scaling race any more. It is a convergence on settlement.
That distinction matters commercially, because transactions per second was never the metric institutions were waiting on. Finality determinism was. A custodian moving tokenised collateral does not need a million transactions per second; it needs to know, with certainty and within a bounded window, that a transfer is irreversible. Solana proposing to compress that window by two orders of magnitude is a bigger event for real-world-asset (RWA) settlement than any throughput number published in the last three years.
What each chain is actually shipping
Solana’s Alpenglow replaces TowerBFT with a voting component called Votor and moves voting off-chain, cutting network load as well as finality time. It arrives alongside the Agave 4.1 validator client in the second half of 2026 (MEXC).
Ethereum’s Glamsterdam is the structural one. It raises transaction throughput, expands data capacity, reduces database bloat, and introduces enshrined proposer-builder separation (ePBS), which makes block construction transparent at protocol level rather than dependent on off-chain relays. That is a market-integrity change dressed as a scaling change.
“Glamsterdam [is] Ethereum’s most significant upgrade since The Merge in September 2022,” said Holly Atkinson, Chief Product Officer at 1inch (MEXC).
Base’s Beryl hard fork is the least discussed and arguably the most immediately useful: it introduced the B20 native token standard — explicitly pitched at stablecoins, real-world assets and tokenised equities — cut withdrawal finality from seven days to five, and integrated Reth V2 to reduce node storage requirements. Avalanche, meanwhile, has pushed its post-Etna layer-1 model to the point where more than $2 billion in tokenised assets now sit on dedicated chains.
Why finality, and why now
Every one of those changes is legible as an answer to an institutional objection. Seven-day withdrawal finality on an optimistic rollup is a non-starter for a treasury desk; five days is still bad, but the direction is the point. Off-chain block-building relays are an unacceptable trust assumption for a regulated market-maker; ePBS removes it. A 12.8-second finality window is fine for a retail swap and useless for delivery-versus-payment settlement; 100 milliseconds is not.
The demand signal is already visible in the numbers. Solana’s RWA book has hit a record — as we reported when its tokenised asset value reached $3.4 billion — and Avalanche’s $2 billion of tokenised assets on dedicated layer-1s tells the same story from a different architecture. Chains are not building settlement features speculatively. They are building them because the assets have already arrived and the infrastructure is the binding constraint (The Block).
The counter-case
Two cautions are warranted. First, none of this has shipped to mainnet at scale. Alpenglow is a second-half target, Glamsterdam is on devnets, and consensus changes have a long history of slipping. A 100-millisecond finality figure measured “under optimal network conditions” is a laboratory number, and the gap between laboratory and production is where most blockchain roadmaps go to die.
Second, the institutional settlement market may not end up on public chains at all. Swift’s blockchain ledger going live with 17 banks piloting is a competing answer to the same question, built by the incumbent that already owns the messaging layer. If banks conclude that a permissioned ledger delivers the determinism they need without the regulatory ambiguity, the finality race on public chains will have been fought over a market that moved elsewhere.
What to watch
Three things decide whether this upgrade cycle converts into institutional volume. Whether Alpenglow’s finality target survives contact with mainnet conditions rather than optimal ones. Whether Glamsterdam ships in the second half of 2026 at all, or slips into 2027 as Ethereum upgrades routinely have — a risk that sits awkwardly against Vitalik Buterin’s separate three-to-four-year Lean Ethereum rebuild, which implies the deeper work is still ahead. And whether the B20 standard attracts issuers, because a token standard with no tokens is a specification, not a market.
The honest read is that the chains have correctly identified what institutions want. Whether they can deliver it, on time, in production, is a separate question — and the record on that is not good.
This article is informational analysis only and is not financial, investment, or trading advice. Cryptocurrencies are highly volatile and can lose substantial value rapidly. Past performance and historical patterns do not guarantee future results. Do your own research and consult a regulated financial adviser before making any investment decision.
Karthik Subramanian
Karthik Subramanian is a founder, writer, and technology consultant with nine years in the crypto ecosystem. He covers token economics, L1/L2 infrastructure, DeFi protocols, wallets/custody, and the bridge between crypto and forex—broker technology, liquidity, and macro drivers. Karthik’s writing focuses on clear, practical frameworks that help professionals evaluate new products and on-chain innovation alongside FX market realities.
